The occurrence mode of coal seams #15–1 and #15–3 in the lower coal group is thin coal seam group with average distance 4.

Experiment on underground coal gasification of the thin coal seam in Ezhuang;

Application of air bag support in thin coal seam recovery;

Research on ways of high production and high efficiency of thin coal seam;

Research of hydraulic support design and thin seam mining technology;

Rapid water injection for dust control technology with short boreholes for drilling and blasting coal mining face in thin seam;

Thin Seam Comprehensive Mechanization Mining Technology and Research Equipment

Regarding the extremely thin coal bed coal and the gas prominentpossibility analysis,in formerly practiced was a blank,therefore inthe production process knew and took the degree to be insufficient.

Through technical analysis on demolition mining engineering for hard thin coal beds in Fujian Province,this paper proposes that if the coal bed coefficient of hardness is different,the researched emphasis is accordingly different.

Mainly introduced the application of Solidworks software to hydraulic pressure support design in thin coal bed,the hydraulic pressure support which designed using Solidworks software in thin coal bed,had achieved the design goal and the request.

This paper analyses and experiment on the problem whether the near distance thin coal bed can be exploited by means of uphill low support synthesis mechanization extraction.